4154438993 has 8 divisors (see below), whose sum is σ = 4389137280. Its totient is φ = 3925836880.

The previous prime is 4154438989. The next prime is 4154439001. The reversal of 4154438993 is 3998344514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4154438993 - 2² = 4154438989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4154431993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522643 + ... + 1525368.

It is an arithmetic number, because the mean of its divisors is an integer number (548642160).

Almost surely, 2^4154438993 is an apocalyptic number.

It is an amenable number.

4154438993 is a deficient number, since it is larger than the sum of its proper divisors (234698287).

4154438993 is a wasteful number, since it uses less digits than its factorization.

4154438993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048087.

The product of its digits is 1866240, while the sum is 50.

The square root of 4154438993 is about 64454.9376929340. The cubic root of 4154438993 is about 1607.5733401457.

The spelling of 4154438993 in words is "four billion, one hundred fifty-four million, four hundred thirty-eight thousand, nine hundred ninety-three".